import java.util.Locale;
import java.util.Scanner;

public class Test {
    public static void main(String[] args) {

    }
    /*public int firstUniqueChar(String s){
        int []count=new int[25];
        for (int i = 0; i < s.length(); i++) {
            char ch=s.charAt(i);
            count[ch-'a']++;//这里非常巧妙的将26个英文字母对应数组下标

        }
        for (int i = 0; i < s.length(); i++) {
            char ch=s.charAt(i);
            if(count[ch-'a']==1){
                return i;
            }

        }
        return -1;



    }*/






   /* String str = new String("good");
    char[ ] ch = { 'a' , 'b' , 'c' };
    public static void main(String args[]){
       Test ex = new Test();
        ex.change(ex.str,ex.ch);
        System.out.print(ex.str + " and ");
        System.out.print(ex.ch);
    }
    public void change(String str,char ch[ ]){
        str = "test ok";
        ch[0] = 'g';
    }*/
  /*  private  boolean isLegal(char ch){
        if(ch>='a'&&ch<='z'||ch>='0'&& ch<='9'){
            return true;

        }
        return false;
    }

   public boolean isPalindrome(String s) {
        s=s.toLowerCase();
        int left=0;
        int right=s.length()-1;
        while(left<right){
            while(left<right&&!isLegal(s.charAt(left))){
                left++;
            }
            while(left<right&&!isLegal(s.charAt(right))){
                right--;
            }
            if(s.charAt(left)!=s.charAt(right)){
                return false;
            }else{
                right--;
                left++;
            }

        }
       return  true;
*/
      /* Scanner in =new Scanner(System.in);
        while(in.hasNextLine()){
            String s=in.nextLine();
            int k=s.lastIndexOf(' ');
            String ret=s.substring(k+1);
            System.out.println(ret.length());
        }*/


   }





}
 /*class SystemUtil{
    public static boolean isAdmin(String userId){
        return userId.toLowerCase()=="admin";
    }
    public static void main(String[] args){
        System.out.println(isAdmin("Admin"));
    }
}*/